Bird box visitor's motion detector
Hi, I'm looking for a motion detector with difference & wonder if anyone has any bright ideas. I have setup a bird box on the side of my house & it's early spring here in the uk. I'm only getting occasional visits from a bluetit couple & would like to know when the're home.
An initial idea is to check the brightness of the video image. It's monochrome so the brightness reduces dramatically if a bird is home. Any ideas how I can acheive this?bird box link